U.S. patent number 3,620,341 [Application Number 04/845,962] was granted by the patent office on 1971-11-16 for hot food dispensing machine.
Invention is credited to Houston, TX, John D. L. Gardner.
United States Patent |
3,620,341 |
|
November 16, 1971 |
HOT FOOD DISPENSING MACHINE
Abstract
A dispensing machine for maintaining food in cold storage, and,
in response to coin deposits, a selection from a variety of foods
may be accomplished, and the food so selected automatically
delivered into a microwave cooking unit and quickly cooked, and
delivered to a delivery tray where it may be received by the
buyer.
Inventors: |
John D. L. Gardner (401 Houston
First Saving Bldg.), Houston, TX (N/A) |
Family
ID: |
25296536 |
Appl.
No.: |
04/845,962 |
Filed: |
July 30, 1969 |
Current U.S.
Class: |
194/200; 219/214;
221/110; 221/150HC |
Current CPC
Class: |
G07F
9/105 (20130101); G07F 17/0078 (20130101) |
Current International
Class: |
G07F
9/10 (20060101); G07f 011/72 () |
Field of
Search: |
;194/10
;221/103,110,150,150A,150HC,279 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Robert B. Reeves
Assistant Examiner: David A. Scherbel
Attorney, Agent or Firm: Ranseler O. Wyatt
Claims
What is claimed is:
1. In a hot food dispensing machine, a housing having a cabinet and
a hinged door, selector buttons mounted in said door and a coin
deposit slot and a coin reject tray mounted in said door, a
delivery tray mounted in said door, refrigerated food-storage
compartments, one section of said food-storage compartments being
mounted in said door and another section of said food-storage
compartments mounted in said cabinet, a microwave cooking element
mounted in said cabinet beneath said storage compartments,
longitudinally movable food-container supports mounted in said
compartments and means for selectively moving one of said supports
in response to a coin deposit and a signal from said selector
buttons, and means for guiding said food containers from said food
supports into said microwave cooking element and on to a delivery
tray, said food-container supports comprising a pair of rollers,
independent motors for rotating each pair of rollers and a belt
mounted on said rollers, a switch mounted at each end of each of
said food supports to activate the respective supports and to
transfer the activation to the next support upon exhaustion of the
supply of containers on the respective supports.
Description
A dispensing machine for maintaining food in cold storage and
cooking and delivering same in response to a coin deposit, a
cold-storage unit having means for maintaining same under
refrigeration and food container supporting means movably mounted
in said refrigerated units having means for selectively moving one
of said supporting means in response to coin deposit, to deliver
one food container into a cooking area, and a magnatron unit in
said area for cooking said food by microwaves, and a timing element
adapted to disconnect said cooking unit and deliver said food
container with the hot food therein to a pickup tray upon
completion of a preset time cycle.
FIG. 1 is a front elevational view, in perspective, of the housing
for the dispensing unit.
FIG. 2 is a front elevational view of the housing with the door
opened, disclosing the interior of the machine.
FIG. 3 is a front elevational view of the open housing, showing the
food container trays and units for moving same.
FIG. 4 is an enlarged partial side elevational view of the food
storage, delivery and cooking units.
FIG. 5 is an end view of the food container supporting means, taken
on the line 5--5 of FIG. 4,
FIG. 6 is a side elevational view of the cooking unit, taken on the
line 6--6 of FIG. 4, and
FIG. 7 is an electrical diagram of the circuits employed.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In the drawings the numeral 1 designates a housing, such as a
metallic cabinet, having the door 2, hinged to the cabinet, and
mounted in the door 2 is the serving-tray housing 3 having the
serving trays as 4 which are belts moving upon rotation of the
rollers as 5, 5. A drive shaft 6 is rotated by the motor 7 through
the gear 8, which rotates the rollers 5 and moves the belts 4, 4. A
similar housing 9 having food-storage trays, belts and motors, is
mounted in the cabinet 1, the location of the motors on the
respective housings, being in staggered relation so that the motors
in the housing 3 will not contact the motors in the housing 9 when
the door 2 is closed.
Also mounted in the door 2 is the coin-receiving box 10 and the
delivery tray 11.
In the cabinet 1 is the cooking unit 12 having the microwave unit
13 which produces microwaves which are directed by the element 14
to the food in the container 15 which has be deposited in the
cooking unit 12. A fan 16 cools the microwave unit 13. A compressor
17 for the refrigerating unit is also mounted in the cabinet 1, the
said refrigerating unit (not shown) being of conventional
design.
Each housing 3 and 9 contains a series of food-container supports
4, 4 which are selectively activated through the selector switches
18, 18. At each end of each food support means 4 is a switch as 19,
20. One end of the food support has a vertical plate 21 mounted
thereon which bear against the end food container 15. When the last
food container on a support as 4 is delivered into the chutes 22,
23, the switch 20 will be released, signalling the switch 19 on the
next food support to respond to the next demand.
The food tray supports are mounted in a framework as 24 which is
slidably mounted on the tracks 25, 25 within the housing 1,
permitting the framework to move outwardly and be resupplied with
food containers, which will be loaded on the supports after the
plate 21 is moved to rearmost position, closing the switch 19
preparatory to delivering another series of food containers.
The chute 23 is large enough to receive containers from either
housing 3 or 9, and terminates in the chute 22, which delivers the
food container to the heating unit. A motor 26, in response to a
coin deposit, opens the door 27 providing access to the heating
unit, through which the container passes, and the spacing unit 28,
on the inside wall of the door 27, pushes the container 15 into
position under the microwave element 14, on the platform 29, which
is mounted on suitable supports 30, 30 which are in turn mounted on
the hinged section 31, which is opened and closed by means of the
motor 32.
The coin-deposit box is provided with the accepted coin-storage box
33 and the reject box 34. When a selection is made through the
selector box 18, and a coin deposit is made into the slot 35, the
coins pass through the coinbox 10 where they are scanned and, if
found in order, deposited in the accepted coinbox 33, but if, for
any reason, such as improper amount, bad coins, or exhausted supply
of the selected food, the coins are delivered into the rejection
box 34 and are available to the depositor through the reject slot
36. When the coins are accepted and pass into the accepted
coin-storage box, the appropriate motor 7 is activated, rotating
the rollers 5, 5 enough to carry the belt 4 forward until one
container clears the end of the belt and is delivered into the
chutes 22, 23. The motor 26 will be simultaneously activated,
opening the door 27 of the cooking unit and the container 15 will
pass into the cooking unit and on to the platform 29, and as the
door 27 closes, the spacer 28 will bear against the food container
and push same to the right position on the platform 29. The
microwave element 14 will then be activated and the cooking
completed, at which time the microwave unit will be deactivated and
the motor 32 activated to open the door 31 and permit the container
15 to slide off of the platform 29 onto the delivery tray 11.
The electric circuit illustrated in FIG. 7, provides for a source
of power from the usual 110 -volt input; this power operates the
coin rejector and the rejector relaw, which are connected into the
selector switches, the delivery motor controls and the "empty"
lamps, and the delivery motor controls are connected into the
delivery motors. A transformer connected into the 110 -volt input
provides a 12 -volt supply to the delivery switch, and to the oven
doors motors and controls, and to the cooking lamp. Connected into
the 110-volt input are the high-voltage power transformer means,
which connects into and supplies power to the magnatron; the
magnatron filament supply; the blower, the fluorescent lamp in the
sign-illuminating means and the lamp-illuminating means for the
buttons 18. The sign-illuminating means will illuminate the sign as
37 when the machine is plugged in.
* * * * *